Mechanical movement



PATENTED EEB. 2., 1904.

' A. LINDSAY & J. MEINEET.

MECHANICAL MOVEMENT.

4 APPLIATICVN` FILED JUNE 5, 1903. NO MODEL.V 9

l llllllllh .lIlIl-I .5111111E-V/f//1 21'IIflllllllllllllllllllllll m:wams Eriks co. vnnruumo.. wnsumm'on. n4 r.

Patented February 2, 1904.

ALEXANDER LINDSAY AND JOHN MEINERT, OF DAVENPORT, IOWA.

MEcHANloAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 751,317, dated February`2, 1904.

. Application filed June 5, 1903. Serial No. 160,176. (No model.) I i Toa/ZZ whom itin/way concern.-

Be it known that we, v'ALEXANDER LINDSAY and JOHN MEINERT, citizens ofthe' United States, and residents of Davenport, in the county of Scottand State of Iowa, have invented new and useful Improvements inMechanical Movements, of which the following is a full, clear,"and exactdescription.

Our invention; relates to novel and useful improvements in mechanicalmovements.

In carrying out our invention we have particularly in view as an objectthe provision of an improved mechanism designed for impartingpower tothe dasher-shaft of churns and to washing-machines and the like.

A further object of the invention is to provide a device which will bedurable in its construction and positive in its operation, whileembodying the essential features of simplicity and economy.

A further object of the invention is to provide an improved mechanismwhich may be used for imparting a rotary reciprocating movement toa-vertical shaft, the power.A being taken from a rotating approximatelyhorizontal shaft. v v l With the above-recited ends and others of asimilar nature under consideration the invention consists intheconstrnction, combination, and arrangement of parts, as is describedin this specifica-tion, delineated in the accompanying drawings, and set`forth in the appended claims. l i

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a view in side elevation of a mechanism embodying ourimprovements. Fig. 2 is a vie'w in elevation of the improved cam used inconnection with our mechanism, a portion of the cambeing broken away andshowing the position of travel of the follower head or block thereon..Fig. 3 is a plan view showing the portion of the cam at which the endsof the splines or follower-strips terminate.I Fig. 4 is a similar viewof a different portion of the cam, and Fig. 5is a view showing thefollower traveling along the opposite importance and is as follows:

of the two splines or strips. proximately centrally of the space above'ref i spline Mor strip to that over which it travels in Eig. 2.

Referring now to the accompanying drawings in detail, A designates abase or suitable support, having mounted thereon thesupporting-standards 5 5, said standards being provided withbearing-sleeves 6 6 at their upper end portions, within which sleeves isjournaled a horizontally disposed V,driving-shaft f7, said shafthavingsecured at one end thereof a hand-wheel 8, provided with a handle9, with which said wheel may be turned for thevpurpose of revolving theshaft 7 At the opposite end of the shaft from that carrying the handleis rigidly secured our improved 'cam-wheel, which we have designated asa whole by a. This cam-Wheel is formed with an approximately concavedbarrel 10, having at each side thereof circular ianged disk portions 1111. In referring to the barrel of the cam-wheel as being concaved it isof course to be understood that this implies that the central portion ofthe cam is of less diameter than the end portions thereof, the barrelbeing therefore thinnest at its center and flared outward towardtheends.

l Upon the barrel or body portion of the cam are arranged strips orfsplines 12 and 13. The

arrangement of these splines is of particular One of the splines-forinstance, that designated by the numeral 12-eXtendsfor the greaterportion of its distance around the adjacent ange or edge of the cam, andits end portions are bent at a slight angle to the main portion of the.cam,.said ends 14 14 being directed inward towardthe center of the camin a similar manner to the ends 14 14,l the construction being such'thata space is left between the four ends Arranged apferred to and socket-edwithin the body of the cam-barrel is a switch pinor frog 16, used forthe purpose of directing or switching the follower-head at the top ofthe dasher-shaft. This follower-head is in the nature of a bifurcatedblock 17 which is adapted to travel over the aforesaid spline or strip,the grooved portion 18 of said bifurcated head readily permitting this.This head portion is secured to a short shaft or stud 19, which in turnis journaled in the bored head 2O of the dasher shaft or rod, which inturn extends through and is journaled in the vertical sleeve 21, saidrod having at its lower end any suitable rubber or washer. (Not shown.)

As has been above stated, itis the object of the invention to impart tothe vertical shaft or rod 22 a reciprocating rotary motionthat is tosay, a movement in which the vertical shaft is turned partially in onedirection and then reversed and rotated in the opposite direction-suchmotion being transmitted from the horizontal shaft 7, which has acontinuous rotary motion, through the medium of the cam structure justdescribed.

From the above description, taken in connection with the drawings, theoperation of the mechanism will be readily apparent. When the shaft 7 isturned through the medium of the hand-wheel, the cam being rigidtherewith is also revolved, and the followerhead is caused to travelalong the main body of one of the strips or splines which lies adjacentto the iange of the cam and is then directed inward toward the center ofthe cam by said strip and with the continuous; revolution of the cam isswitched over and across the center to the diagonally opposite end ofthe other spline, said cam-head then traveling around this spline to theother end thereof, when it is directed across the frog or switch ing-pinin an opposite direction from its rst line of travel. By this it will beseen that a reverse movement is imparted to the shaft as the headcrosses the switching-frog in either direction and then on its nextrevolution of the cam crosses said switch in an opposite direction.

It is to be noted that we have provided an exceedingly-simple mechanismfor imparting the reversing or reciprocating motion to the verticalshaft, and such a device will be found extremely convenient for use onmany household articles-such as washing machines, churns, and thelike-and while we have herein shown and described one particularembodiment of our invention it is of course to be understood that we donot limit ourselves to all the precise details of construction shownherein, as there may be modifications and variations in some respectswithout departing from the spirit of the invention or sacrificing any ofthe advantages thereof.

Having thus described our invention, we claim as new and desire tosecure by Letters Patentm 1. The combination of acam-wheel, splines orstrips formed on said cam-wheel, the ends of said strips terminatingnear the center of the cam-wheel at an angle to the main body portion ofthe strips, a switching-pin mounted between the terminating portions ofthe camwheel, a rotating rod, and a grooved followerhead secured to saidrod and adapted to travel over the splines or strips when the cam-wheelis revolved, the construction being such that a rotary reciprocatingmovement will be imparted to the rod, substantially as set forth.

2. The combination with a rotatable rod, of means for imparting a rotaryreciprocating movement to said rod, such means comprising a camwheel,splines or strips mounted on said cam-wheel, and the ends of saidsplines or strips terminating at a point near the center of the barrelof the cam-wheel, and a grooved follower-head secured to the rod anddesigned to travel over said strips, the construction bcing such thatthe follower will be switched from one strip to another to and from thecenter of the cam, substantially as set forth.

3. The combination of a frame, a drivingshaft journaled therein, acam-wheel at the end of said shaft, splines or strips mounted on saidcam-wheel, the main portion of said strips extending partially aroundthe periphery of the cam-wheel, the ends of said strips being bent at anangle to the main portion thereof, said ends terminating near the centerof the camwheel, a switching-pin arranged adjacent to the ends of thestrips, a rotatable rod journaled in said frame, and a groovedfollowerhead secured to the upper portion of said rod, the constructionbeing such that when the firstmentioned shaft is rotated the groovedfollower-head will travel over the strips and will be directed from onestrip to' another by the switching-pin, whereby a reversible movementwill be imparted to the rod, substantially as set forth.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

ALEXANDER LINDSAY. JOHN MEINERT.

Witnesses: Y

C. XV. HORNBEY,4 Louis BLOCK.

lOO

